Kneading-machine for the materials of paper manufacture.



No; 807,228. PATBNTED DEC. 12, 1905 G. WURSTER.

KNE ADING MACHINE FOR THE MATERIALS OF PAPER MANUFACTURE.

APPLICATION FILED JUNE 3, 1905.

\\\ I INZIEINTDR Casimir Wurster UNITED STATES PATENT OFFICE."

CASIMIR w-U s-TE'R, OF LONDON, EN LAND;

KNEADlNG-MACHINE FOR THE MATERIALS OF PAPER MANUFACTURE. I

Specification of Letters Patent. Application filed June 9,1905. Serial No. 263,521.

have invented certain new and'usefu Imrovements in Kneading-Machines for the aterials of Paper Manufacture; and I do to be a full,

clear, and exact description such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to a knead-,-

ing-machine of that kindin which one or more shafts provided with stirring arms or 1 disks revolve in a trough.

The present invention has for its object to render this kneading-machine also suitable for cutting and grindin so that they can simultaneouslyperform t ose operations that have heretofore been performed in the ragwashing en ine, the half-stuff rag-engine or breaker, an the whole-stuff engine or beatin' and refining engine ith this machine all raw materials for pa-' per manufacture can be treated in the manner indicatedstraw, halfcellulose, wood boiled with soda, steamed wood, rags, waste pa er, and the like.

he invention consists in that thearms or disks carried by the shafts and the ribs which in many cases are arranged on the walls of the trough are provided with cutting or ding devices or with cutting and grind- 1ng pro ections, which are made sharper or blunter, according as they are intended mainly to out or mainly to grind or beat.

On the accom anying drawings are shown several modes 0 construction of the invention.-

Figure 1 is a horizontal section of a kneading-machine constructed according to the present invention with two shafts. Fig. 2 shows a machine with a single shaft. F' s. 3 to 6 show various'forms of the arms or disks. In the construction with two shafts (shown at Fig. 1) there are provided at the feeding end in the trough a on the two shafts b and c a few neutral stirrers d, which neither cut nor grind. In the other part of the trough the shafts carry disks e, which are formed with sharp-ed ed proj ections j on the one side and on the ot er side are formed with blunt the invention,

. washing t stirring arms are provi ed.

edged projections for the sides ha blunt projections y can be approache toward each other. In the first case a cutting action takes place, while in the second case a The action can be y increased by keeping the disks grinding actionoccurs. gradual Patented Dec. 12, 1905. I

the

rather far apart at the commencement of working and then to cause them gradually to be set closer. Special means for the transport of the material from the charging end toward the discharging end h nee not be aw of gravity automatically travels toward the 'discharg' end. The disks can, however, by way 0 exaniple, as shown at Fig. 4, be formed with notches i on the. eriphery, which during the rotation of the lsks scoo up small quantities of the material an throw it over to the other shaft, and so transport the material toward the outlet.

.The applaratus can also be-employed for e rags in a counter-current if in the first part of the trou h onl kneading or he washingwater in this case 1s su plied at the end of the'trough throu h a p1 e k and leaves the trough at the ot er end through a sieve Z. This affords aconsiderable advantage over the half-stuff rag-engine, which effects -'the .provide'd, as the material in following. the

cutting u ofthe rags in a favorable manner,"

ing, as alwa s only small quantities of'the discharging irty water are replaced by small quantities of clean water.

In Fig. 2 only a single shaft is provided, while in the trough a, ribs m are formed, which operate together with the disks e. The shaft 1) is also in this casead'ustable. r Figs. 3 to 6 how different forms of arms and disks for c, tting and inding, Fig. 3

shows a four-armed body, t e arms of which are provided with transverse ribs. Fig. 4

- butwhic operates unfavorablyfor the wash-,- I

shows a disk with projecting sectors that are also provided with tangentially-placed ribs.

Fig. 5 shows a disk with small 'pyramidicallyformed projections, While Fig. 6 shows a disk with radiallyarranged ribs. The projections machine will a pear from the following considerations: T e half-stud ing -'engine or L breaker is essentially an apparatus for cutting,

' shown in the several figures are made sha while the whole-stuff ra -engine or beater is onlyintended to beat an grind. It isintended to convert the cellulose mechanically into the bodywell known as wetstufi'" to manufacturers' and termed gelatinous cellulose by the inventor, whichin the'sheet of pa er cements the separate fibers to ether, an thus roduces thestrength of-L t e paper sheet. hese totally-different operations of the breaker and the beater -,-can', according to the present invention, be carried out in-a single machine by either approaching to each other the knife-like operating pro ections or the grinding or crushing blunt rojections.

Having thus described t e nature of this invention and the best means I know of carrying the same into practical effect, I claim- 1. In -a refining-engine, the combination with acasm of a rotary member in said casing provide on one face with a grinding-surthe cuttingsurface of-said firstmamed member, and means for actuating said first-named member. I

'2. In a refining-engine, the combination with a casing, of a rotary member in said cas-" ing, provided on one face with a grindingsurface and on the other with a cuttin -surface, a second member at one side 0 said first-named member and provided with a grinding-surface facin the -surface of said"first-named meilberfia fhi r r l member at the other side of said first-named member and provided with a cutting-surface facing the cutting-surface ofsaid first-named member, means for adjusting said first-named member'betweensaid second and third m eni bers, and means for actuating said first-.

named member.

3. In a refining-engine, 'thercombinationi;

with a casin of a. set of rotary members,

each provide on one face witha grindingface, a second set of members each rovided Y with a cutting-surface and a grin ing-surface, the like surfaces'of the twos'ets of members facing each other, means for longitudinally adjusting one of said sets of members and means for actuating one of said sets of members. I

5. In a refining-engine, the combination with a casing, of a set of neutral stirrers, a set of rotary members each provided on one face with a cutting-surface and on the other with a-grinding-surfa'ce, a second set of members each provided with a cutting-surface and a grinding-surface, the like surfaces of the two sets of members facing each other, and means for actuating one of said sets of members.-

In testimony whereof 'I have hereunto set my hand and affixed my seal in the presence of thetwo subscribing witnesses.

' OASIMIR WU RSTER. Witnesses:

HENRY HASPER,

WOLDEMAR HAUr'T. 

